private async _resolveChatAttachments(sessionChannel: ProtocolURI, attachments: readonly MessageAttachment[] | undefined): Promise<readonly MessageAttachment[] | undefined> {
if (!attachments?.some(attachment => attachment.type === MessageAttachmentKind.Chat)) {
}
return Promise.all(attachments.map(async attachment => {
if (attachment.type !== MessageAttachmentKind.Chat) {